BATH CITY OF

NPDES permit ME0100021 · Major POTW · expired, expires 2025-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2025-12-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 36 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among ME permits in EPA's filings — check your permit).

Limits in force (48)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 876 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 1314 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Solids, total suspendedMO AVG <= 876 lb/d all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG <= 1314 lb/d all year
001Solids, settleableDAILY MX <= .3 mL/L all year
001Coliform, fecal MF, MFC broth, 44.5 CMO GEO <= 14 #/100mL all year
001Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 31 #/100mL all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualDAILY MX <= .37 mg/L all year
001EnterococciMO AVG <= 8 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001EnterococciDAILY MX <= 54 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Mercury, total [as Hg]MO AVG <= 30.9 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 46.3 ng/L all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
002Flow rateMINIMUM report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002BOD, 5-day, 20 deg. CDAILY MX <= 8206 lb/d all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedDAILY MX <= 18423 lb/d all year
002Solids, total suspendedDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO TOTAL report only all year
002Chlorine, total residualDAILY MX <= 1 mg/L all year
002Chlorine, total residualDAILY MX report only all year
002Coliform, fecal generalDAILY MX <= 200 #/100mL all year
002Coliform, fecal generalDAILY MX report only all year
002OverflowsMO TOTAL report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states